Thanks for your help, Travelswithmyself.
I used the link to buy the MP tickets. It was still 266 Soles for two people, for just the vanilla ticket. Perhaps I did something wrong?
I also booked train passage on Peru Rail. $200 each. Urubamba > MP on a Vista Dome with the buffet lunch. And then MP > Ollanta on Vista Dome. I hope this is right. I selected Ollantaytambo as the return destination and assume that's just the abbreviation.
And then I just get a cab from Ollantaytambo to Tambo Del Inka?
Any restaurant recommendations in Ollantaytambo?
And is the Urubamba train station near Tambo Del Inka? The resort advertises it's "own" private train station, but I suspect this just the Urubamba station.